| Customization: | Available |
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| Natural Abrasive Type: | Fused Alumina |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina, also recognized as Brown Aluminum Oxide, is a synthetic mineral marvel, renowned for its extraordinary hardness and exceptional wear resistance. Meticulously engineered through the precise melting of bauxite, iron filings, and anthracite in a high-temperature electric arc furnace, this elite material is crafted to perfection. Following this, a refined cooling, crushing, and screening process ensures that this product emerges with unmatched physical and chemical properties. Its remarkable qualities render it indispensable across a diverse array of industrial applications, making it a cornerstone in the pursuit of excellence.
| TYPICAL CHEMICAL ANALYSIS | |
| Al2O3 | 99.54% |
| Na2O | 0.23% |
| SiO2 | 0.06% |
| Fe2O3 | 0.06% |
| PHYSICAL PROPERTIES | |
| Color | Brown |
| Shape | Angular grain shape |
| Crystal Form | Alpha alumina |
| Specific Gravity | 3.95 |
| Hardness | 2150 Knoop scale |
| Magnetic Material | 0.00% |
The creation of brown fused alumina (BFA) is an intricate process, meticulously executed through a series of carefully controlled stages. These encompass the preparation of raw materials, the fusion process, cooling, crushing, and finally, precise classification. Let's delve into the detailed steps of this sophisticated process:
Raw Material Preparation:
Bauxite: As the primary raw material, bauxite boasts a rich concentration of alumina (Al2O3). The selection of bauxite is conducted with precision to meet the desired alumina content, while minimizing impurities to ensure superior quality.
Iron filings or scrap iron: These are introduced into the mixture to facilitate the reduction process during the fusion stage, enhancing the efficiency and purity of the final product.
Anthracite coal: This acts as a reducing agent, playing a vital role in the chemical reactions during fusion.
Fusion:
Electric Arc Furnace (EAF): The well-prepared mixture is fed into an electric arc furnace, where monumental temperatures (approximately 2000-2200°C or 3632-3992°F) are generated through electric arcs between carbon electrodes, setting the stage for fusion.
Reduction and Fusion: Amid these extreme temperatures, bauxite's alumina melts and reacts with carbon from anthracite, creating molten alumina. Concurrently, iron and other impurities are reduced, resulting in their separation from the alumina.
Cooling:
Cooling the Molten Alumina: Once the fusion is complete, the molten alumina is poured into molds or onto a cooling floor. This controlled cooling is integral to attaining the desired crystal structure and precise size.
Formation of Ingots: As cooling progresses, the material solidifies into substantial ingots or blocks of fused alumina, prepared for the next stages.
Crushing and Grinding:
Primary Crushing: Post-cooling, the ingots are initially broken down using robust jaw crushers or equivalent heavy-duty machinery, setting the foundation for further processing.
Secondary Crushing and Grinding: The material undergoes additional crushing and grinding using cone crushers, roll crushers, and ball mills. This meticulous process ensures the achievement of the precise particle size.
Magnetic Separation:
Removing Metallic Impurities: To ensure purity, the finely ground material is passed through magnetic separators, effectively eliminating residual iron particles and other metallic impurities.
Sieving and Classification:
Particle Size Distribution: The crushed and purified alumina undergoes sieving to separate it into various grades based on particle size. Vibrating screens and air classifiers are employed for this purpose, ensuring precise classification.
Quality Control: Every batch undergoes rigorous testing to verify chemical composition, particle size distribution, and other quality parameters, ensuring compliance with stringent industry standards and customer satisfaction.
The versatile nature of Brown Fused Alumina makes it an indispensable asset across a myriad of industrial landscapes, thanks to its remarkable hardness, enduring toughness, and impressive resistance to melting. These traits make it a preferred choice for several critical applications:
Abrasives: Harness the power of Brown Fused Alumina in crafting superior grinding wheels, efficient sandpaper, robust blasting media, and a suite of other abrasive tools engineered for precision and durability.
Refractories: Employ the material's exceptional heat resistance in producing top-tier refractory bricks, castables, and other high-temperature-resistant materials, ensuring safety and reliability in challenging thermal environments.
Surface Preparation: Utilize Brown Fused Alumina for immaculate surface cleaning, precise deburring, and meticulous preparation tasks in demanding sectors like metalworking and automotive, where flawless finishes are non-negotiable.
Ceramics: Integrate this material into ceramic manufacturing processes to achieve products that boast unparalleled durability and superior resistance to thermal shock, perfect for applications that demand performance under intense conditions.
| TYPICAL BULK DENSITY | |||||||
| Grit (F) | g/cm³ | Grit (F) | g/cm³ | Grit (F) | g/cm³ | Grit (F) | g/cm³ |
| 12 | 1.74 | 30 | 1.77 | 60 | 1.65 | 120 | 1.51 |
| 14 | 1.72 | 36 | 1.76 | 70 | 1.62 | 150 | 1.48 |
| 16 | 1.72 | 40 | 1.72 | 80 | 1.59 | 180 | 1.46 |
| 20 | 1.72 | 46 | 1.71 | 90 | 1.55 | 220 | 1.44 |
| 24 | 1.79 | 54 | 1.69 | 100 | 1.54 | ||
Drums and Barrels:
Weight: Offering a standard size of 200 L (53 gallons), these drums are perfect for various storage applications.
Material: Available in sturdy metal or high-density polyethylene, ensuring optimal protection and reliability.
Features: Each drum is secured with tamper-evident seals, is moisture-resistant, and stackable, optimizing storage efficiency.
Applications: Ideal when extra protection from environmental factors is paramount or for seamless integration into automated processes.
Custom Packaging:
Options: Tailored solutions to precisely match unique customer requirements and specifications, offering unmatched flexibility.
Features: Customized weights, materials, and labeling options are available to cater to specific customer demands and distinctive needs.
Applications: Perfect for specialized industries or applications that demand unique packaging standards.
Labeling and Documentation:
Identification: Each package features clear labeling that details product information, including grade, grit size, weight, and batch number.
Safety Information: Comprehensive labels provide necessary safety and handling instructions, ensuring safe usage.
Compliance: Our packaging adheres to international shipping regulations and industry standards, ensuring seamless transportation.
Luoyang Frere Import and Export Trading Co., Ltd. is a prestigious and innovative trading company with a specialized focus on refractory materials and abrasive media. We seamlessly blend industry and trade expertise, backed by state-of-the-art testing facilities and formidable technical prowess. Proudly situated in the thriving hub of Luoyang city, Henan province, our two factories harness 24 years of excellence in the production of Brown Fused Alumina (BFA) and White Fused Alumina (WFA).
Building on our robust factory partnerships, we provide top-tier Cutting Wheels, Grinding Wheels, and Flap Discs at highly competitive prices. Our products have garnered widespread acclaim and trust, skillfully addressing the dynamic economic and social trends of the market. We are unwaveringly committed to quality and customer satisfaction, ensuring our products consistently uphold the highest industry standards.
At Luoyang Frere, we cherish enduring partnerships and eagerly anticipate the chance to collaborate with your esteemed company. Our dedicated team stands ready to support your needs and play a pivotal role in your success journey in the near future.
At Frere company, we believe our commitment to our customers transcends the point of purchase. Our all-encompassing after-sales service is crafted to ensure your enduring satisfaction and success with our premium products. Here's what awaits you when you select us as your trusted abrasive and refractory supplier:
1. Technical Support:
Our team of adept engineers and technical experts stands ready to deliver professional guidance and support. Whether you require help with selecting products, mastering application techniques, or addressing troubleshooting challenges, we are here to assist you in achieving optimal outcomes.
2. Product Training:
We offer comprehensive training programs to equip your team with the skills to use our products efficiently and safely. Our training encompasses everything from basic handling procedures to sophisticated application methods, all customized to match your unique requirements.
3. Warranty and Repairs:
Our entire product line comes with a strong warranty. Should any issues arise, our dedicated service team is committed to providing prompt repairs or replacements, ensuring minimal disruption to your operations.
4. Regular Follow-ups:
Our proactive customer service ethos means we conduct regular follow-ups to assess the performance of our products and collect your feedback. This process aids us in continuously refining and personalizing our offerings to better satisfy your requirements.
5. Maintenance Services:
To extend the durability and enhance the efficiency of our products, we offer exceptional maintenance services. Our specialists assist you in developing a maintenance schedule and provide on-site support, ensuring your equipment remains in peak condition.
6. Rapid Response:
Faced with an urgent issue, our rapid response team is ready to deliver immediate support. We recognize the time-sensitive nature of your operations and are committed to resolving any problems swiftly and effectively.
7. Spare Parts Availability:
We boast a comprehensive inventory of spare parts, ensuring swift access to essential components. Our efficient logistics network ensures rapid delivery, minimizing downtime and maintaining the seamless flow of your operations.
8. Customer Feedback Loop:
Your feedback is a vital asset to us. We actively solicit your insights on our products and services, utilizing it to fuel continuous enhancement. Our aim is to surpass your expectations at every opportunity.
9. 24/7 Customer Service:
Our committed customer service team is accessible 24/7 to resolve any concerns or inquiries you may have. Whether it's a straightforward question or an urgent situation, we are perpetually poised to provide unwavering support.
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